Lawo summing box

32 input 2BUS + 2BUS 4-BUS Lawo Analog Summing Mixer

2-4-BUS Custom Analogue Summing Sub Group Mixer – Lawo DV975 NOS

Professional 1U Custom Analog Summing Rack, engineered around the legendary Lawo DV975 NOS transformer modules. This unit is designed for hybrid studios that require high-headroom analogue depth and flexible sub-grouping in a compact rack space.

The Lawo DV975 circuitry provides the authentic analog glue and harmonic complexity that defines professional analogue summing. Engineered for 110-240V global compatibility.

Technical Specifications

  • Custom Built: Hand-assembled in the EU with free custom name engraving
  • 32 Balanced Inputs via DB25
  • 4 Balanced TRS Outputs (Main & Monitor)
  • 5 x Stereo Monitor (STM) points: Inputs 1/2, 11/12, 17/18, 19/20, 25/26
  • 4 Subgroups (DB25) with dedicated Send/Return and individual on/off switches
  • Group A: Channels 1–16
  • Group B: Channels 17–24
  • Group C: Channels 25–30
  • Group D: Channels 31–32
  • 21-step precision gain control by Lawo (classic round-style knob)

 

Lawo summing box
4 x master insert
4 x master insert
4 x master insert
4 x master insert
32 ch summing mixer with 4 x master insert
32 ch summing mixer
32 ch summing mixer
32 ch summing mixer
32 ch summing mixer
32 ch summing mixer
32 ch summing mixer

The 2-4-BUS Lawo DV975 system is more than just a summing mixer; it is a precision-engineered analogue bridge for the modern digital studio. By utilizing the unique sonic characteristics of New Old Stock (NOS) Lawo transformers, this unit delivers a high-headroom 3D soundstage that preserves the natural transients of your mix.

Whether you are routing complex subgroups for parallel processing or looking for the ultimate “Analog Glue” for your master bus, this custom-built instrument provides the reliability and harmonic depth that only true electro-tech engineering can offer. Hand-assembled in the EU to meet the highest professional standards.

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